Pile-core.



2 sHEETs-sHBEi' 1.

PATENTED MAR. 26, 1907.

A. A. RAYMOND.

PILE GORE. I

APPLICATION FILED SEPT.11.1905.

PATBNTED MAR. 26, 1907. A. A. RAYMOND.

PILE GORE. APPLIOATION FIL ED SEPT.11,1905. v

2 SHEETS-SHEET B.

UNITED STATES PATENT oE icE.

ALFRED A. RAYMOND, OF CHICAGO, ILLINOIS, ASSIGNOR TO RAYMOND CONCRETE FILE- COMPANY, OF CHICAGO, ILLINOIS, A CORPORATIO OF NEW JERSEY.

PlLE-CO RE.

a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Pile- Cores, of which the following is a specification. v

My invention relates to a core for sinking shells or pipes into the ground for the purpose of receiving the cement or concrete which is to be introduced therein (after the pile-core has been withdrawn) for the formation of a concrete pile.

The object of my invention is to provide the core which thus drives or sinks the shell or pipe into the ground with a collapsible point or shoe which in the sinking operation is expanded and in the operation of withdrawing such core is contracted or collapsed to such compass as to be readily withdrawable through the shell or pipe.

Other features of advantage and utility in my form of core will be apparent from the description hereinafter given.

In the drawings, Figure 1 1s a side elevatlon of the pile shell or pipe, together with thecore in place ready for driving or sinking; Fig. 2, a central longitudinal section of such pipe and core; Figs. 3, 4, and5, transverse sec tions on the lines 3 3, 4 4, and 5 5, respectively, of Fig. 2; and Fig. 6, a longitudinal section of a construction of pile-core inwhich a jetting-pipe separate from the core-pipe is employed.

In the present and preferable embodiment of'my invention as herein shown I make provision for sinking or introducing the pipe and its core into the ground by driving or by jetting, or by both; but it will be understood that my invention is not to be limited in its broader aspect to any particular manner of driving or sinking or any particular construction in this respect.

As herein shown, the'covering which is to inclose the sides of the pile and which is to receive the concrete which forms such pile is a-shell or pipe 1 of suitable diameter and length, according to the desired length. and diameter of the concrete pile. The pile-core which is inserted within the shell when the parts are assembled in the driving operation,

as illustrated in Figs. 1 and 2, comprises in the present instance a pipe 2, somewhat Specification of Letters Patent. Application filed September 1 1, 1905. Seria1No. 277.954.

' operation;

Patented March 26, 1907.

shorter than the shell and carrying at its upper end a driving head or cap 3, which in the present instance is provided on its lower end witha screw-threaded socket receiving the screw-threaded upper end of the corepipe 2 and having a flange 4 receiving and fitting over the upper end of the pile-shell. In case the pile is to be sunk or introduced into the ground or. soil by the jetting process the driving head or cap may be provided with a suitable lateral opening, such as the opening 5, to be connected in. the well-known manner to a source of jetting fluid, such as water, air, or steam. .The lower end of the core-pipe is secured to the point or shoe, which in the present instance is made of a plurality of parts or sections,'some oi. which are collapsible'upon the others in order. to enable such point or shoe to be withdrawn inwardly to clear the lower ends of the pile-shell, and thereby be permitted to be withdrawn together with its core. As shown in Figs. 2 to 5, the point or shoe comprises a hollow block v 6, a point proper, (marked 7 and aseries of segments 8, together with operating connections between such point and the block.

As herein shown, the block is secured in suitable manner to the lower end of the corepipe, in the present instance both by screwthreading therein and by the rivets 9, for the purpose of securely fastening said parts together. The segments 8, which as herein shown are four in number, form practically a continuation of the outer surface of the point proper, and the same are recessed at their upper ends, so as to form the shoulders 8, the

pile-shell fitting such recessed or reduced portion of the segments and resting against such shoulders, as clearly indicated in Fig. 2.

,Moreover, these segments form practically a continuous surface circumferentially which is exposed to the soil inthe driving or sinking The segments are arranged to be expanded to the position indicated in Fig. 2 and also to be collapsed, so as to withdraw their outer or largest diameter within the inside diameter of the pile-shell, such contraction and expansion of the segments being accomplished automatically by the act of driving or withdrawing the core-pipe, as the case may be.

Referring ments with the block 6 and the point 7 to acto I the connections of the se ge complish the results herein-before referred to,

each segment is in the present instance inde- .pendently pivoted to the upper end of the polnt proper, to which end each segment is provided Centrally with an inwardly-extend ing radial flange or web S which at its lower end is received between parallel and substantially radial lugs 10, which are formed from the body of and on the top surface of the point proper. This flange is pivotally held between said lugs by means of the transverse pivot-pin 11. Inasmuch as the segments are independently connected. with the point, a series of four of these pivotal connections are provided, as clearly illustrated in Fig. 5. parallel ribs or flanges 12, projecting laterally from the block 6; but such block and the segments are arranged to have an independent movement, to which end a pin 13 is passed through each pair of flanges 12, near the lower end thereof,and thesame is received within the longitudinal and elongated slot 8. The flangeslZ, as shown in Fig, 2, are-of increasing width from top to bottom, or,-in other words, the bottom of the channel between such flanges is inclined downwardl and inwardly, so that the walls of thelhol ow block are at such points truncated conical, as

clearly indicated in section in Fig. 2. Likewise the inner'face or edge of the flange s nof each, segment is correspondingly inclined,

. While the slot 8 of each segment-,has substantially the same inch nation.

The parts being constructed and assembled, as above described, it will be observed'that when the core-pipe is in its lowermost posi- .tion its seriesof pins 13 will beresting at the lower ends'of the series ofslots 8, with the result that the'segments-are outwardly pressed or. expanded. to their full'. extent to the position, for instance, as indicated in Fig. 2.

At this time the pile-shell is positionedaround and encompasses the reduced upper ends of the segments, which areoutwardly expanded against the lower inner ends of such pile- Shell, and, moreover, the lower edgesof this the pile-shell, together with its .di'iven or..sunk into the shell are arranged to rest and to be stopped against down-ward movement relative to the shoe by the shoulders 8 When, however, core, hasbeen ground the proper the core-pipe is withdrawn updistance,

wardly in suitable manner, and in the act ofwithdrawal the entire shoe is contracted or collapsed free of the, lower .end of the pileshell,thereby enabling the entire core, comprising also the shoe or point, to be removed om the pile-shell without displacing or -with' drawing'the latter in any measure. In this act of withdrawal of the core-pipe the up- Ward movement of the pipe, together with the block 6, fastened thereto, raises the series of pins 13, which in traveling upwardly in the series of slots 8 simultaneouslyand Each flangeS is received between uniformly draw the segments inwardly until.

such pins take their position at the upperends of such slots, at which time the ,se

ments are collapsed or contracted to their full extent and at which time such segments are withdrawn entirely within the internal diameter of the pile-shell. By preference, the shoulders 8 are beveled or inclined downwardly, so as to enable the segments tobe moved inwardly without undue friction with the lower end of the pile-shell. The entire core is now in position to be withdrawn, leaving the pile-shell in position in the ground to per end w tnthe lower end of the passage 141 and'term'inating at itslower end at the ex.- treme lower end of the point or shoe, as clearly indicated in Fig. 2, it being understood that the jetting fluid is introduced in suitable manner within the core-pipe 2, from whence it. flows downwardly through the pile-shell and core to be easily sunk orintroduced into the ground by such process alone or by such'process assisted by driving. When certain kinds of soil, particularly soft soils, mud, sand, and the like, it is desirable toj-use an outer covering around the projecting portion or point of the core and also around the lower end of the pile-shell for the purpose of preventing entrance of such soft soils into the spaces or cracks between the segments and also to prevent the soil from filling up the conical. space when the core is withdrawn.

the pile-shell and core are driven or sunk into .tudinal passage 15, communicating at its uppassages 14 and 15 to the soil, to enable the To this end I provide a covering (marked 16) shaped to fit the lower end of the pile-shell and the point or shoe, the latter in practice, in fact, causing the proper shaping of such covering. This covering maybe made of any suitable material-such as thin shee sufficient to prevent the entrance of the soil into the space between the segments and also sufiici'ent to retain its shape after the coreproper and its shoeare withdrawn.

.met a1, papier-mfich, fiber paper, or the like p III - Referring to Fig. 6, a special'jetting-pipe 17 may .be employed within the core-pi e and the same may be suitably secured, as y screw-threading, in the point roper. This particular construction or p ace of fastening the lower end 'ofthisjetting pipe is preferableinasmuch a's into the jetting-passage 15v the escape of jetting fluid between the block and the point proper is prevented, it being understood, moreover, that in the operation of withdrawing the core the block is arranged to slide upwardly upon the jetting-pipe. In order to provide for this independent movement of the core proper with respect'to the jetting-pipe, such pipe extends only part way of the length of the core-pipe and'is connected with the jetting-passage in the driving-cap by means of a suitable flexible connection, such as the hose-pipelS, which will permit of the described independent movement.

I claim- 1. A pile-core adapted to sink a pile-shell.

and provided at its lower end with a collapsible point or shoe, said core and shoe being withdrawable from the shell.

arranged to collapse and being withdrawable together with its shoe from the shell. 3. QA pile-core adapted to sink a pile-shell and insertible therewithin in the sinking operation, such core being provided at its lower end with an expansibleand contractible shoe expanded by the act of pressing the core downwardly and contracted by the act of withdrawing the same upwardly, said core and shoe being withdrawable fromthe shell. 4. A pile-core adapted to sink a pile-shell and insertible therewithin in the sinking operation, such core being provided at its lower end with a collapsible point or shoe on which the lower end of the pile-shell fits, said core and shoe being withdrawable from the shell. 5. A pile-core adapted to sink a pile-shell and insertible therewithin in the sinking op eration, such core being provided at its lower end with a point or shoe having collapsible 'segments arranged .to be expanded against zig thelower end 0 the pile-shell in the sinking ,;operation. 7

6., A pile-core adapted to sink a pile-shell and provided at its lower end with a collapsible point or shoe, comprising a point proper,

a block secured to the core proper and a sefr'ies'of expansible and contractible segments cooperating with the point proper and the block 7. A pile-core adapted to sink a pile-shell and provided at its lower end with a collapsible point or shoe, comprising a point proper, a block'secured to the core and a series of expansible and cont-ractible segments pivoted upon the point proper and having independent movement with respect to the block.

8. A pile-core adapted to sink a shell and provided at its lower endwith a collapsible point or shoe, comprising a point proper, a

block secured to the core proper and a series of expansible and contractible segments piv- 2. A pile-core adapted to sink a pile-shell the oted upon the point proper and arranged to collapse inwardly upon the block.

9. A pile-core adapted to sink a pile-shell and provided at its lower end with-a collapsible point or shoe, comprising a pointproper,

a block se ured tothe core proper and a series of expansible and contractible segments cooperating with the --point proper and the block, said point having its greatest diameter 1lless than the internal diameter of the pileshe 10. A pile-core adapted to sink a pile-shell and provided at its lower end with a collapsible point or shoe, comprising a point proper, a block secured to the core proper and a series of expansible and contractible segments pivoted upon the point proper and having a pin-and-slot connection with the block.

11. A pile-core adapted to sink a pile-shell and provided at its lower end with a collapsible point or shoe, comprising a point proper, a block secured to the core proper and .a se-. ries of expansible and eontgactiblesegments having radial flanges or webs pivoted upon oint proper and cooperating with the block to permit a. movement of the latter longitudinally and independently of the' segmerits. I

12. A pile-core adapted to sink a pile-shell and provide at its lower end with a collapsible point or shoe, comprising a point proper, a block secured to the core proper and a series of expansible and contractible segments having radial flanges provided upon the point proper and having a pin-and-slot connection with the. block.

13. A pile-core adapted to sink a pile-shell and provided at its lower end with a collapsible point or shoe, comprising a point proper, a block secured to the core proper and a series of expansible and contractible segments having radial flanges pivoted upon the 'peint proper and having angular slots, and

pins on the block and movable in the slots.

14. A pile-core adapted to sink a pile-shell and provided at its lower end with a collapsible point or shoe, comprising a point proper, a block secured to the core proper and a series of expansible and contractible seg ments having radial flanges pivoted at their lower ends to the upper end of the point proper and having toward their upper ends a pinand-slo.t connection with the block.

15. A pile-core adapted to sink a pileshell and provided at its lower end with a collapsible oint or shoe, comprising a point proper, a b ock secured to the core proper and a series of expansible and contractible seg ments having radial flanges pivoted upon the point proper and having angular slots said.

block having lateral flanges formed by 16. A pile-core adapted to sink a pile-shell and provided at its lower end with a collapsible point or shoe, comprisinga point proper, a block secured to the core proper and a series of expansible and contractible segments having radial flanges pivoted upon the point proper and having angular slots and inner edges inclined downwardly and in-- wardly, said block having pairs of lateral flanges and sockets therebetween correspond? ing in inclination with the inner edges of the segments, and pins in the block-flanges and received by said slots.

' 17. A pile-core adapted to sink a pile-shell and provided at'its lower end witlra collapsible point or shoe comprising a point proper, a block secured to the core proper, and a series of collapsible segments cooperating with the point and block, said segments being reduced at their upper ends to receive H the pile-shell.

18. A pile-core adapted to sink a pile-shell and provided at its lower end with a collapsi ble point or shoe comprising a point proper whose-greater diameter is less than the internal diameter of the pile-shell, a block secured to the lower end of the core proper, and a plurality of segments reducedat theirupper ends to receive the pile-shell-and having shoulders 8 upon which the lower end of thepileshell rests. r.

v 19 A pile-core adapted to sink a pile-shell I and insertible therewithin in the sinking operation, said core 'com operation, said' core" com tubular body ation, said core comprising a body portion having a collapsible s roe or po nt at its lower end, and a driving-head at its upper'end.

20. A pile-core adapted to sink a pile-shell.

and insertible therewithin in the sinking operrising a body portion 0e or point at itslower having a collapsible s 'enda driving-head arend and at its upper ranged to fit over the upper end of the pileshell. l. 1

21. A pile-core adapted to sink a pile-shell and insertible therewithin. in the sinking.

operation, said core comprising a tubular body portion having affixed to its lower end a collapsible sh'oe or'point on which the lower end of the pile-shell fits andhaving at its upper end a drivinghead.

22. A pile-core adapted to sink a pile-shell and insertible therewithin in 'the' sinking prising a hollow lower end a collapsible shoe or pointprovided with a jettingpassage, and means for sup plyingjetting fluid to the tubular-body por tion.

23. A pile-core adapted to sink a pi le shell and lnsertible therewithin in 'the sinking operation, said core comprisinga hollow, tubular body portion having affixed to its lower end a collapsible shoe or point'provided with a 1ettingfpassage, and having at its upper end a driving-head having a. jet-inlet portion having affixed to itstubular body portion.

24. A pile-core adapted to sink a pile-shell and comprising a pipe arranged within and concentric of the shell, and a collapsible shoe at the-lower end of the pipe.

concentric of the s ell, and a collapsible shoe plurality of segtherewith, said diameter than a point proper, ablock anda inents operatively connected block and point beingof less be expanded radially against thelower end of the shell. 1

26. A pile-core adapted to sink a pile-shell eration, saidjcore comprising a hollow tubular-body portion haying-'aflixed to its lower end a collapsible shoe or point consisting of a point proper provided with a jetting-passage, a hollow block secured to the lower end of ments connecting the block to the point, and

jetting-passage of the point. i

I 28. A pile-core adapted to sink a pileshell and insertible therewithin'in the sinking oplar body portion having affixedto its lower end a collapsible shoe or pointconsisting of a point proper provided with a jetting-passage, collapsible segments or sections operatively jetting-passagelof the point, a cap arranged on the upper end 'oftsaid-body portion and provided. with. a jetting-passage, and a flexible jetting connection between pipe and the jetting-passage iii-said cap.

' 29. A pile-core adaptedto sink atpile-shell end with a collapsible point or shoe on which the lower end of the pile-shell fits, and a coverin'g fitting over said point or shoe.

30. 'A pile-core adapted to. sink a pile-shell ble polnt or shoe, comprising a point proper, ablock secured to the core proper, aseries of .expansib'le and contractible segments cooppassage for supplying the jetting fluid to the at the lower end of the pipe and consistingof the shell andthe segment being arranged to with said tubular body portion,

and insertible therewithin in the sinking op-v said tubular body portion, collapsible segeration, said core-comprising a hollowtubu and'insertible therewithin in the sinking operati'on, such core being provided at its lower andprovi'ded at its lowrend with a collapsi- 25; A pile-core adapted to sink-a pile-shell and comprisinga ipe arranged within and and insertible therewithin in the sinking opsaid body portion of the core and secured a jetting-pipe extending longitudinally of i said body portion and'a'rranged within the connected with said,tub1ilar body portion, a j etting-pipe extending longitudinally of said body portion of the core-and secured in the said jettingerating with the point proper and the block, and a covering fitting over said point proper and the segments.

31. A pile-core adapted to sink a pile-shell ing a point proper having a central jettingpassage a hollow block secured to the core proper, a series of expansible and contractile segments cooperating with the point proper and the block, a jetting-pipe extending centrally and longitudinally of the core proper and communicating at its lower end wit the jetting-passage in the point proper, said jetting-pipe extending part way of the length of the core proper, a driving-cap secured to the upper end of the core proper and provided with a jetting-passage, and a flexible p'pe connecting said j etting-pass age and the jetting-pipe. I 7

32.. Apile-core adapted to sink a pile-shell and provided at its lower end with a collapsible point or shoe, comprising a point proper, a blockseclired to the core, a series of ex pansible andc'ontraotible segments pivoted upon the point proper and having independent movement with respect to the block, and a covering fitting over the point proper and sfiidlll segments and the lower end of the piles e ALFRED A. RAYMOND.

Witnesses:

', S. E, HIBBEN,

LOUIS B. ERWIN. 

